Ingredients
You only need three ingredients for this recipe:
- 1 can (15 oz / 425 g) kidney beans, drained and rinsed (about 250 g after draining)
- 3 large eggs, at room temperature
- 1 teaspoon baking powder
You’ll also want a little parchment paper for lining your loaf pan.
Ingredient Notes and Substitutions
Kidney Beans
Canned kidney beans are the easiest choice because they’re already fully cooked, soft, and ready to blend. Look for plain beans without added seasonings or sauces. Draining and rinsing them well removes the thick canning liquid and excess sodium, which gives you a cleaner flavor and a better batter consistency.
If you’d rather cook your own beans from dried, make sure they are fully cooked before using them. Kidney beans must never be eaten undercooked, because raw or undercooked kidney beans contain a natural compound that can cause stomach upset. Canned beans are already safely cooked, which is one more reason they’re a convenient option here. If you do cook dried beans, you’ll want roughly 1½ cups of cooked, well-drained beans (about 250 g) to match the can.
Eggs
The eggs provide structure, moisture, and additional protein. Room-temperature eggs blend more smoothly into the beans, so take them out of the refrigerator about 20 to 30 minutes before you begin. If you’re in a hurry, place the whole eggs in a bowl of warm (not hot) water for about 5 minutes.
Because eggs are doing the structural work in this recipe, there isn’t a reliable one-to-one swap for a fully egg-free version. Some people experiment with flax eggs or other binders, but results vary and the texture will be different from the original.
Baking Powder
Baking powder gives the loaf a little lift so it isn’t overly dense. Check that yours is fresh. If it’s been in the pantry for more than six months to a year, test it by stirring a small spoonful into hot water. If it fizzes vigorously, it’s still active.
Instructions
Preheat your oven to 350°F (175°C). Drain the kidney beans in a colander and rinse them thoroughly under cold running water. Then pat them lightly with a clean kitchen towel to remove excess moisture. This small step matters, because extra water can make the finished bread too wet in the center.
Line a small loaf pan (approximately 8 × 4 inches) with parchment paper, leaving a little overhang on the long sides. The overhang will act as handles later, so you can lift the loaf out easily once it has cooled.
Step 2: Blend the Ingredients
Add the drained kidney beans and the eggs to a food processor or high-speed blender. Blend until the mixture is completely smooth and creamy, stopping to scrape down the sides as needed. You shouldn’t see any visible bean skins or chunks. Add the baking powder and blend briefly, just until it’s evenly incorporated.
The batter will be thick but pourable, with a color similar to a light brownish-pink. Don’t worry about the color. It will bake to a warm golden-brown.
Step 3: Prepare the Loaf Pan
Pour the smooth batter into the prepared loaf pan. Use a spatula to spread it evenly into the corners, then gently tap the pan on the counter a few times to release any large air bubbles. This helps the loaf bake evenly and gives you a more uniform crumb.
Step 4: Bake the Bread
Place the pan in the preheated oven and bake for approximately 40 to 50 minutes, or until the top is set and a toothpick inserted into the center comes out mostly clean. Baking time can vary depending on your oven and how much moisture is in your beans, so start checking at the 40-minute mark.
The top should look golden brown with a lightly textured surface, and it may develop small cracks along the center. That’s completely normal and part of this bread’s rustic charm.
Step 5: Cool and Slice
Remove the bread from the oven and let it cool in the pan for about 10 to 15 minutes. Then lift it out using the parchment paper and transfer it to a wire rack. Allow it to cool completely before slicing, which usually takes another 30 to 45 minutes. Because this bread is naturally moist, the interior needs time to set. Slicing too early can give you a gummy, crumbly texture.